diff --git a/.vscode/settings.json b/.vscode/settings.json
index d86acab..7497457 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -2,7 +2,10 @@
     "cSpell.words": [
         "actix",
         "chrono",
+        "dotenv",
+        "rustls",
         "serde",
+        "sqlx",
         "squidspirit"
     ],
     "java.project.sourcePaths": [
diff --git a/backend/.gitignore b/backend/.gitignore
index ea8c4bf..18a057f 100644
--- a/backend/.gitignore
+++ b/backend/.gitignore
@@ -1 +1,3 @@
+.env
+/.sqlx
 /target
diff --git a/backend/Cargo.lock b/backend/Cargo.lock
index 70d840c..8dfeec4 100644
--- a/backend/Cargo.lock
+++ b/backend/Cargo.lock
@@ -49,7 +49,7 @@ dependencies = [
  "mime",
  "percent-encoding",
  "pin-project-lite",
- "rand",
+ "rand 0.9.1",
  "sha1",
  "smallvec",
  "tokio",
@@ -224,6 +224,12 @@ dependencies = [
  "alloc-no-stdlib",
 ]
 
+[[package]]
+name = "allocator-api2"
+version = "0.2.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "683d7910e743518b0e34f1186f92494becacb047c7b6bf616c96772180fef923"
+
 [[package]]
 name = "android-tzdata"
 version = "0.1.1"
@@ -300,6 +306,15 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "atoi"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f28d99ec8bfea296261ca1af174f24225171fea9664ba9003cbebee704810528"
+dependencies = [
+ "num-traits",
+]
+
 [[package]]
 name = "autocfg"
 version = "1.4.0"
@@ -318,7 +333,7 @@ dependencies = [
  "miniz_oxide",
  "object",
  "rustc-demangle",
- "windows-targets",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -327,11 +342,20 @@ version = "0.22.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
 
+[[package]]
+name = "base64ct"
+version = "1.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "89e25b6adfb930f02d1981565a6e5d9c547ac15a96606256d3b59040e5cd4ca3"
+
 [[package]]
 name = "bitflags"
 version = "2.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5c8214115b7bf84099f1309324e63141d4c5d7cc26862f97a0a857dbefe165bd"
+dependencies = [
+ "serde",
+]
 
 [[package]]
 name = "block-buffer"
@@ -369,6 +393,12 @@ version = "3.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1628fb46dfa0b37568d12e5edd512553eccf6a22a78e8bde00bb4aed84d5bdbf"
 
+[[package]]
+name = "byteorder"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
+
 [[package]]
 name = "bytes"
 version = "1.10.1"
@@ -421,6 +451,21 @@ version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5b63caa9aa9397e2d9480a9b13673856c78d8ac123288526c37d7839f2a86990"
 
+[[package]]
+name = "concurrent-queue"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4ca0197aee26d1ae37445ee532fefce43251d24cc7c166799f4d46817f1d3973"
+dependencies = [
+ "crossbeam-utils",
+]
+
+[[package]]
+name = "const-oid"
+version = "0.9.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c2459377285ad874054d797f3ccebf984978aa39129f6eafde5cdc8315b612f8"
+
 [[package]]
 name = "cookie"
 version = "0.16.2"
@@ -447,6 +492,21 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "crc"
+version = "3.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "69e6e4d7b33a94f0991c26729976b10ebde1d34c3ee82408fb536164fa10d636"
+dependencies = [
+ "crc-catalog",
+]
+
+[[package]]
+name = "crc-catalog"
+version = "2.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "19d374276b40fb8bbdee95aef7c7fa6b5316ec764510eb64b8dd0e2ed0d7e7f5"
+
 [[package]]
 name = "crc32fast"
 version = "1.4.2"
@@ -456,6 +516,21 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "crossbeam-queue"
+version = "0.3.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0f58bbc28f91df819d0aa2a2c00cd19754769c2fad90579b3592b1c9ba7a3115"
+dependencies = [
+ "crossbeam-utils",
+]
+
+[[package]]
+name = "crossbeam-utils"
+version = "0.8.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d0a5c400df2834b80a4c3327b3aad3a4c4cd4de0629063962b03235697506a28"
+
 [[package]]
 name = "crypto-common"
 version = "0.1.6"
@@ -466,6 +541,17 @@ dependencies = [
  "typenum",
 ]
 
+[[package]]
+name = "der"
+version = "0.7.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e7c1832837b905bbfb5101e07cc24c8deddf52f93225eee6ead5f4d63d53ddcb"
+dependencies = [
+ "const-oid",
+ "pem-rfc7468",
+ "zeroize",
+]
+
 [[package]]
 name = "deranged"
 version = "0.4.0"
@@ -503,7 +589,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
 dependencies = [
  "block-buffer",
+ "const-oid",
  "crypto-common",
+ "subtle",
 ]
 
 [[package]]
@@ -517,6 +605,27 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "dotenv"
+version = "0.15.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77c90badedccf4105eca100756a0b1289e191f6fcbdadd3cee1d2f614f97da8f"
+
+[[package]]
+name = "dotenvy"
+version = "0.15.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1aaf95b3e5c8f23aa320147307562d361db0ae0d51242340f558153b4eb2439b"
+
+[[package]]
+name = "either"
+version = "1.15.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "48c757948c5ede0e46177b7add2e67155f70e33c07fea8284df6576da70b3719"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "encoding_rs"
 version = "0.8.35"
@@ -555,6 +664,44 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "877a4ace8713b0bcf2a4e7eec82529c029f1d0619886d18145fea96c3ffe5c0f"
 
+[[package]]
+name = "errno"
+version = "0.3.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "976dd42dc7e85965fe702eb8164f21f450704bdde31faefd6471dba214cb594e"
+dependencies = [
+ "libc",
+ "windows-sys 0.59.0",
+]
+
+[[package]]
+name = "etcetera"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "136d1b5283a1ab77bd9257427ffd09d8667ced0570b6f938942bc7568ed5b943"
+dependencies = [
+ "cfg-if",
+ "home",
+ "windows-sys 0.48.0",
+]
+
+[[package]]
+name = "event-listener"
+version = "5.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3492acde4c3fc54c845eaab3eed8bd00c7a7d881f78bfc801e43a93dec1331ae"
+dependencies = [
+ "concurrent-queue",
+ "parking",
+ "pin-project-lite",
+]
+
+[[package]]
+name = "fastrand"
+version = "2.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "37909eebbb50d72f9059c3b6d82c0463f2ff062c9e95845c43a6c9c0355411be"
+
 [[package]]
 name = "flate2"
 version = "1.1.1"
@@ -565,6 +712,17 @@ dependencies = [
  "miniz_oxide",
 ]
 
+[[package]]
+name = "flume"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "da0e4dd2a88388a1f4ccc7c9ce104604dab68d9f408dc34cd45823d5a9069095"
+dependencies = [
+ "futures-core",
+ "futures-sink",
+ "spin",
+]
+
 [[package]]
 name = "fnv"
 version = "1.0.7"
@@ -586,12 +744,50 @@ dependencies = [
  "percent-encoding",
 ]
 
+[[package]]
+name = "futures-channel"
+version = "0.3.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2dff15bf788c671c1934e366d07e30c1814a8ef514e1af724a602e8a2fbe1b10"
+dependencies = [
+ "futures-core",
+ "futures-sink",
+]
+
 [[package]]
 name = "futures-core"
 version = "0.3.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "05f29059c0c2090612e8d742178b0580d2dc940c837851ad723096f87af6663e"
 
+[[package]]
+name = "futures-executor"
+version = "0.3.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e28d1d997f585e54aebc3f97d39e72338912123a67330d723fdbb564d646c9f"
+dependencies = [
+ "futures-core",
+ "futures-task",
+ "futures-util",
+]
+
+[[package]]
+name = "futures-intrusive"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d930c203dd0b6ff06e0201a4a2fe9149b43c684fd4420555b26d21b1a02956f"
+dependencies = [
+ "futures-core",
+ "lock_api",
+ "parking_lot",
+]
+
+[[package]]
+name = "futures-io"
+version = "0.3.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9e5c1b78ca4aae1ac06c48a526a655760685149f0d465d21f37abfe57ce075c6"
+
 [[package]]
 name = "futures-sink"
 version = "0.3.31"
@@ -611,9 +807,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9fa08315bb612088cc391249efdc3bc77536f16c91f6cf495e6fbe85b20a4a81"
 dependencies = [
  "futures-core",
+ "futures-io",
+ "futures-sink",
  "futures-task",
+ "memchr",
  "pin-project-lite",
  "pin-utils",
+ "slab",
 ]
 
 [[package]]
@@ -626,6 +826,17 @@ dependencies = [
  "version_check",
 ]
 
+[[package]]
+name = "getrandom"
+version = "0.2.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "335ff9f135e4384c8150d6f27c6daed433577f86b4750418338c01a1a2528592"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "wasi 0.11.0+wasi-snapshot-preview1",
+]
+
 [[package]]
 name = "getrandom"
 version = "0.3.2"
@@ -668,6 +879,59 @@ name = "hashbrown"
 version = "0.15.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "84b26c544d002229e640969970a2e74021aadf6e2f96372b9c58eff97de08eb3"
+dependencies = [
+ "allocator-api2",
+ "equivalent",
+ "foldhash",
+]
+
+[[package]]
+name = "hashlink"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7382cf6263419f2d8df38c55d7da83da5c18aef87fc7a7fc1fb1e344edfe14c1"
+dependencies = [
+ "hashbrown",
+]
+
+[[package]]
+name = "heck"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
+
+[[package]]
+name = "hex"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
+
+[[package]]
+name = "hkdf"
+version = "0.12.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7b5f8eb2ad728638ea2c7d47a21db23b7b58a72ed6a38256b8a1849f15fbbdf7"
+dependencies = [
+ "hmac",
+]
+
+[[package]]
+name = "hmac"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c49c37c09c17a53d937dfbb742eb3a961d65a994e6bcdcf37e7399d0cc8ab5e"
+dependencies = [
+ "digest",
+]
+
+[[package]]
+name = "home"
+version = "0.5.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "589533453244b0995c858700322199b2becb13b627df2851f64a2775d024abcf"
+dependencies = [
+ "windows-sys 0.59.0",
+]
 
 [[package]]
 name = "http"
@@ -913,7 +1177,7 @@ version = "0.1.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "38f262f097c174adebe41eb73d66ae9c06b2844fb0da69969647bbddd9b0538a"
 dependencies = [
- "getrandom",
+ "getrandom 0.3.2",
  "libc",
 ]
 
@@ -933,12 +1197,43 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d4345964bb142484797b161f473a503a434de77149dd8c7427788c6e13379388"
 
+[[package]]
+name = "lazy_static"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
+dependencies = [
+ "spin",
+]
+
 [[package]]
 name = "libc"
 version = "0.2.172"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d750af042f7ef4f724306de029d18836c26c1765a54a6a3f094cbd23a7267ffa"
 
+[[package]]
+name = "libm"
+version = "0.2.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a25169bd5913a4b437588a7e3d127cd6e90127b60e0ffbd834a38f1599e016b8"
+
+[[package]]
+name = "libsqlite3-sys"
+version = "0.30.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2e99fb7a497b1e3339bc746195567ed8d3e24945ecd636e3619d20b9de9e9149"
+dependencies = [
+ "pkg-config",
+ "vcpkg",
+]
+
+[[package]]
+name = "linux-raw-sys"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cd945864f07fe9f5371a27ad7b52a172b4b499999f1d97574c9fa68373937e12"
+
 [[package]]
 name = "litemap"
 version = "0.7.5"
@@ -978,6 +1273,16 @@ version = "0.4.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "13dc2df351e3202783a1fe0d44375f7295ffb4049267b0f3018346dc122a1d94"
 
+[[package]]
+name = "md-5"
+version = "0.10.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d89e7ee0cfbedfc4da3340218492196241d89eefb6dab27de5df917a6d2e78cf"
+dependencies = [
+ "cfg-if",
+ "digest",
+]
+
 [[package]]
 name = "memchr"
 version = "2.7.4"
@@ -1011,12 +1316,49 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "num-bigint-dig"
+version = "0.8.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc84195820f291c7697304f3cbdadd1cb7199c0efc917ff5eafd71225c136151"
+dependencies = [
+ "byteorder",
+ "lazy_static",
+ "libm",
+ "num-integer",
+ "num-iter",
+ "num-traits",
+ "rand 0.8.5",
+ "smallvec",
+ "zeroize",
+]
+
 [[package]]
 name = "num-conv"
 version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "51d515d32fb182ee37cda2ccdcb92950d6a3c2893aa280e540671c2cd0f3b1d9"
 
+[[package]]
+name = "num-integer"
+version = "0.1.46"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7969661fd2958a5cb096e56c8e1ad0444ac2bbcd0061bd28660485a44879858f"
+dependencies = [
+ "num-traits",
+]
+
+[[package]]
+name = "num-iter"
+version = "0.1.45"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1429034a0490724d0075ebb2bc9e875d6503c3cf69e235a8941aa757d83ef5bf"
+dependencies = [
+ "autocfg",
+ "num-integer",
+ "num-traits",
+]
+
 [[package]]
 name = "num-traits"
 version = "0.2.19"
@@ -1024,6 +1366,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "071dfc062690e90b734c0b2273ce72ad0ffa95f0c74596bc250dcfd960262841"
 dependencies = [
  "autocfg",
+ "libm",
 ]
 
 [[package]]
@@ -1041,6 +1384,12 @@ version = "1.21.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "42f5e15c9953c5e4ccceeb2e7382a716482c34515315f7b03532b8b4e8393d2d"
 
+[[package]]
+name = "parking"
+version = "2.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f38d5652c16fde515bb1ecef450ab0f6a219d619a7274976324d5e377f7dceba"
+
 [[package]]
 name = "parking_lot"
 version = "0.12.3"
@@ -1061,7 +1410,16 @@ dependencies = [
  "libc",
  "redox_syscall",
  "smallvec",
- "windows-targets",
+ "windows-targets 0.52.6",
+]
+
+[[package]]
+name = "pem-rfc7468"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "88b39c9bfcfc231068454382784bb460aae594343fb030d46e9f50a645418412"
+dependencies = [
+ "base64ct",
 ]
 
 [[package]]
@@ -1082,6 +1440,27 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
+[[package]]
+name = "pkcs1"
+version = "0.7.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c8ffb9f10fa047879315e6625af03c164b16962a5368d724ed16323b68ace47f"
+dependencies = [
+ "der",
+ "pkcs8",
+ "spki",
+]
+
+[[package]]
+name = "pkcs8"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f950b2377845cebe5cf8b5165cb3cc1a5e0fa5cfa3e1f7f55707d8fd82e0a7b7"
+dependencies = [
+ "der",
+ "spki",
+]
+
 [[package]]
 name = "pkg-config"
 version = "0.3.32"
@@ -1111,6 +1490,8 @@ dependencies = [
  "async-trait",
  "chrono",
  "serde",
+ "sqlx",
+ "tokio",
 ]
 
 [[package]]
@@ -1152,14 +1533,35 @@ version = "5.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "74765f6d916ee2faa39bc8e68e4f3ed8949b48cccdac59983d287a7cb71ce9c5"
 
+[[package]]
+name = "rand"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "34af8d1a0e25924bc5b7c43c079c942339d8f0a8b57c39049bef581b46327404"
+dependencies = [
+ "libc",
+ "rand_chacha 0.3.1",
+ "rand_core 0.6.4",
+]
+
 [[package]]
 name = "rand"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9fbfd9d094a40bf3ae768db9361049ace4c0e04a4fd6b359518bd7b73a73dd97"
 dependencies = [
- "rand_chacha",
- "rand_core",
+ "rand_chacha 0.9.0",
+ "rand_core 0.9.3",
+]
+
+[[package]]
+name = "rand_chacha"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
+dependencies = [
+ "ppv-lite86",
+ "rand_core 0.6.4",
 ]
 
 [[package]]
@@ -1169,7 +1571,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d3022b5f1df60f26e1ffddd6c66e8aa15de382ae63b3a0c1bfc0e4d3e3f325cb"
 dependencies = [
  "ppv-lite86",
- "rand_core",
+ "rand_core 0.9.3",
+]
+
+[[package]]
+name = "rand_core"
+version = "0.6.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
+dependencies = [
+ "getrandom 0.2.16",
 ]
 
 [[package]]
@@ -1178,7 +1589,7 @@ version = "0.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "99d9a13982dcf210057a8a78572b2217b667c3beacbf3a0d8b454f6f82837d38"
 dependencies = [
- "getrandom",
+ "getrandom 0.3.2",
 ]
 
 [[package]]
@@ -1225,12 +1636,90 @@ version = "0.8.5"
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 checksum = "2b15c43186be67a4fd63bee50d0303afffcef381492ebe2c5d87f324e1b8815c"
 
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4689e6c2294d81e88dc6261c768b63bc4fcdb852be6d1352498b114f61383b7"
+dependencies = [
+ "cc",
+ "cfg-if",
+ "getrandom 0.2.16",
+ "libc",
+ "untrusted",
+ "windows-sys 0.52.0",
+]
+
+[[package]]
+name = "rsa"
+version = "0.9.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "78928ac1ed176a5ca1d17e578a1825f3d81ca54cf41053a592584b020cfd691b"
+dependencies = [
+ "const-oid",
+ "digest",
+ "num-bigint-dig",
+ "num-integer",
+ "num-traits",
+ "pkcs1",
+ "pkcs8",
+ "rand_core 0.6.4",
+ "signature",
+ "spki",
+ "subtle",
+ "zeroize",
+]
+
 [[package]]
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+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c71e83d6afe7ff64890ec6b71d6a69bb8a610ab78ce364b3352876bb4c801266"
+dependencies = [
+ "bitflags",
+ "errno",
+ "libc",
+ "linux-raw-sys",
+ "windows-sys 0.59.0",
+]
+
+[[package]]
+name = "rustls"
+version = "0.23.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "df51b5869f3a441595eac5e8ff14d486ff285f7b8c0df8770e49c3b56351f0f0"
+dependencies = [
+ "once_cell",
+ "ring",
+ "rustls-pki-types",
+ "rustls-webpki",
+ "subtle",
+ "zeroize",
+]
+
+[[package]]
+name = "rustls-pki-types"
+version = "1.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "917ce264624a4b4db1c364dcc35bfca9ded014d0a958cd47ad3e960e988ea51c"
+
+[[package]]
+name = "rustls-webpki"
+version = "0.103.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fef8b8769aaccf73098557a87cd1816b4f9c7c16811c9c77142aa695c16f2c03"
+dependencies = [
+ "ring",
+ "rustls-pki-types",
+ "untrusted",
+]
+
 [[package]]
 name = "rustversion"
 version = "1.0.20"
@@ -1298,8 +1787,10 @@ name = "server"
 version = "0.1.1"
 dependencies = [
  "actix-web",
+ "dotenv",
  "env_logger",
  "post",
+ "sqlx",
 ]
 
 [[package]]
@@ -1313,6 +1804,17 @@ dependencies = [
  "digest",
 ]
 
+[[package]]
+name = "sha2"
+version = "0.10.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a7507d819769d01a365ab707794a4084392c824f54a7a6a7862f8c3d0892b283"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "digest",
+]
+
 [[package]]
 name = "shlex"
 version = "1.3.0"
@@ -1328,6 +1830,16 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "signature"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77549399552de45a898a580c1b41d445bf730df867cc44e6c0233bbc4b8329de"
+dependencies = [
+ "digest",
+ "rand_core 0.6.4",
+]
+
 [[package]]
 name = "slab"
 version = "0.4.9"
@@ -1342,6 +1854,9 @@ name = "smallvec"
 version = "1.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8917285742e9f3e1683f0a9c4e6b57960b7314d0b08d30d1ecd426713ee2eee9"
+dependencies = [
+ "serde",
+]
 
 [[package]]
 name = "socket2"
@@ -1353,12 +1868,243 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "spin"
+version = "0.9.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6980e8d7511241f8acf4aebddbb1ff938df5eebe98691418c4468d0b72a96a67"
+dependencies = [
+ "lock_api",
+]
+
+[[package]]
+name = "spki"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d91ed6c858b01f942cd56b37a94b3e0a1798290327d1236e4d9cf4eaca44d29d"
+dependencies = [
+ "base64ct",
+ "der",
+]
+
+[[package]]
+name = "sqlx"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f3c3a85280daca669cfd3bcb68a337882a8bc57ec882f72c5d13a430613a738e"
+dependencies = [
+ "sqlx-core",
+ "sqlx-macros",
+ "sqlx-mysql",
+ "sqlx-postgres",
+ "sqlx-sqlite",
+]
+
+[[package]]
+name = "sqlx-core"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f743f2a3cea30a58cd479013f75550e879009e3a02f616f18ca699335aa248c3"
+dependencies = [
+ "base64",
+ "bytes",
+ "chrono",
+ "crc",
+ "crossbeam-queue",
+ "either",
+ "event-listener",
+ "futures-core",
+ "futures-intrusive",
+ "futures-io",
+ "futures-util",
+ "hashbrown",
+ "hashlink",
+ "indexmap",
+ "log",
+ "memchr",
+ "once_cell",
+ "percent-encoding",
+ "rustls",
+ "serde",
+ "serde_json",
+ "sha2",
+ "smallvec",
+ "thiserror",
+ "tokio",
+ "tokio-stream",
+ "tracing",
+ "url",
+ "webpki-roots",
+]
+
+[[package]]
+name = "sqlx-macros"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f4200e0fde19834956d4252347c12a083bdcb237d7a1a1446bffd8768417dce"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "sqlx-core",
+ "sqlx-macros-core",
+ "syn",
+]
+
+[[package]]
+name = "sqlx-macros-core"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "882ceaa29cade31beca7129b6beeb05737f44f82dbe2a9806ecea5a7093d00b7"
+dependencies = [
+ "dotenvy",
+ "either",
+ "heck",
+ "hex",
+ "once_cell",
+ "proc-macro2",
+ "quote",
+ "serde",
+ "serde_json",
+ "sha2",
+ "sqlx-core",
+ "sqlx-mysql",
+ "sqlx-postgres",
+ "sqlx-sqlite",
+ "syn",
+ "tempfile",
+ "tokio",
+ "url",
+]
+
+[[package]]
+name = "sqlx-mysql"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0afdd3aa7a629683c2d750c2df343025545087081ab5942593a5288855b1b7a7"
+dependencies = [
+ "atoi",
+ "base64",
+ "bitflags",
+ "byteorder",
+ "bytes",
+ "chrono",
+ "crc",
+ "digest",
+ "dotenvy",
+ "either",
+ "futures-channel",
+ "futures-core",
+ "futures-io",
+ "futures-util",
+ "generic-array",
+ "hex",
+ "hkdf",
+ "hmac",
+ "itoa",
+ "log",
+ "md-5",
+ "memchr",
+ "once_cell",
+ "percent-encoding",
+ "rand 0.8.5",
+ "rsa",
+ "serde",
+ "sha1",
+ "sha2",
+ "smallvec",
+ "sqlx-core",
+ "stringprep",
+ "thiserror",
+ "tracing",
+ "whoami",
+]
+
+[[package]]
+name = "sqlx-postgres"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a0bedbe1bbb5e2615ef347a5e9d8cd7680fb63e77d9dafc0f29be15e53f1ebe6"
+dependencies = [
+ "atoi",
+ "base64",
+ "bitflags",
+ "byteorder",
+ "chrono",
+ "crc",
+ "dotenvy",
+ "etcetera",
+ "futures-channel",
+ "futures-core",
+ "futures-util",
+ "hex",
+ "hkdf",
+ "hmac",
+ "home",
+ "itoa",
+ "log",
+ "md-5",
+ "memchr",
+ "once_cell",
+ "rand 0.8.5",
+ "serde",
+ "serde_json",
+ "sha2",
+ "smallvec",
+ "sqlx-core",
+ "stringprep",
+ "thiserror",
+ "tracing",
+ "whoami",
+]
+
+[[package]]
+name = "sqlx-sqlite"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c26083e9a520e8eb87a06b12347679b142dc2ea29e6e409f805644a7a979a5bc"
+dependencies = [
+ "atoi",
+ "chrono",
+ "flume",
+ "futures-channel",
+ "futures-core",
+ "futures-executor",
+ "futures-intrusive",
+ "futures-util",
+ "libsqlite3-sys",
+ "log",
+ "percent-encoding",
+ "serde",
+ "serde_urlencoded",
+ "sqlx-core",
+ "thiserror",
+ "tracing",
+ "url",
+]
+
 [[package]]
 name = "stable_deref_trait"
 version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
 
+[[package]]
+name = "stringprep"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7b4df3d392d81bd458a8a621b8bffbd2302a12ffe288a9d931670948749463b1"
+dependencies = [
+ "unicode-bidi",
+ "unicode-normalization",
+ "unicode-properties",
+]
+
+[[package]]
+name = "subtle"
+version = "2.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "13c2bddecc57b384dee18652358fb23172facb8a2c51ccc10d74c157bdea3292"
+
 [[package]]
 name = "syn"
 version = "2.0.101"
@@ -1381,6 +2127,39 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "tempfile"
+version = "3.19.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7437ac7763b9b123ccf33c338a5cc1bac6f69b45a136c19bdd8a65e3916435bf"
+dependencies = [
+ "fastrand",
+ "getrandom 0.3.2",
+ "once_cell",
+ "rustix",
+ "windows-sys 0.59.0",
+]
+
+[[package]]
+name = "thiserror"
+version = "2.0.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "567b8a2dae586314f7be2a752ec7474332959c6460e02bde30d702a66d488708"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "2.0.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f7cf42b4507d8ea322120659672cf1b9dbb93f8f2d4ecfd6e51350ff5b17a1d"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "time"
 version = "0.3.41"
@@ -1423,10 +2202,25 @@ dependencies = [
 ]
 
 [[package]]
-name = "tokio"
-version = "1.44.2"
+name = "tinyvec"
+version = "1.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e6b88822cbe49de4185e3a4cbf8321dd487cf5fe0c5c65695fef6346371e9c48"
+checksum = "09b3661f17e86524eccd4371ab0429194e0d7c008abb45f7a7495b1719463c71"
+dependencies = [
+ "tinyvec_macros",
+]
+
+[[package]]
+name = "tinyvec_macros"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
+
+[[package]]
+name = "tokio"
+version = "1.45.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2513ca694ef9ede0fb23fe71a4ee4107cb102b9dc1930f6d0fd77aae068ae165"
 dependencies = [
  "backtrace",
  "bytes",
@@ -1436,9 +2230,32 @@ dependencies = [
  "pin-project-lite",
  "signal-hook-registry",
  "socket2",
+ "tokio-macros",
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "tokio-macros"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6e06d43f1345a3bcd39f6a56dbb7dcab2ba47e68e8ac134855e7e2bdbaf8cab8"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "tokio-stream"
+version = "0.1.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eca58d7bba4a75707817a2c44174253f9236b2d5fbd055602e9d5c07c139a047"
+dependencies = [
+ "futures-core",
+ "pin-project-lite",
+ "tokio",
+]
+
 [[package]]
 name = "tokio-util"
 version = "0.7.15"
@@ -1490,18 +2307,45 @@ version = "1.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1dccffe3ce07af9386bfd29e80c0ab1a8205a2fc34e4bcd40364df902cfa8f3f"
 
+[[package]]
+name = "unicode-bidi"
+version = "0.3.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c1cb5db39152898a79168971543b1cb5020dff7fe43c8dc468b0885f5e29df5"
+
 [[package]]
 name = "unicode-ident"
 version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5a5f39404a5da50712a4c1eecf25e90dd62b613502b7e925fd4e4d19b5c96512"
 
+[[package]]
+name = "unicode-normalization"
+version = "0.1.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5033c97c4262335cded6d6fc3e5c18ab755e1a3dc96376350f3d8e9f009ad956"
+dependencies = [
+ "tinyvec",
+]
+
+[[package]]
+name = "unicode-properties"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e70f2a8b45122e719eb623c01822704c4e0907e7e426a05927e1a1cfff5b75d0"
+
 [[package]]
 name = "unicode-xid"
 version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ebc1c04c71510c7f702b52b7c350734c9ff1295c464a03335b00bb84fc54f853"
 
+[[package]]
+name = "untrusted"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ecb6da28b8a351d773b68d5825ac39017e680750f980f3a1a85cd8dd28a47c1"
+
 [[package]]
 name = "url"
 version = "2.5.4"
@@ -1531,6 +2375,12 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
 
+[[package]]
+name = "vcpkg"
+version = "0.2.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
+
 [[package]]
 name = "version_check"
 version = "0.9.5"
@@ -1552,6 +2402,12 @@ dependencies = [
  "wit-bindgen-rt",
 ]
 
+[[package]]
+name = "wasite"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b8dad83b4f25e74f184f64c43b150b91efe7647395b42289f38e50566d82855b"
+
 [[package]]
 name = "wasm-bindgen"
 version = "0.2.100"
@@ -1610,6 +2466,25 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "webpki-roots"
+version = "0.26.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "37493cadf42a2a939ed404698ded7fb378bf301b5011f973361779a3a74f8c93"
+dependencies = [
+ "rustls-pki-types",
+]
+
+[[package]]
+name = "whoami"
+version = "1.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6994d13118ab492c3c80c1f81928718159254c53c472bf9ce36f8dae4add02a7"
+dependencies = [
+ "redox_syscall",
+ "wasite",
+]
+
 [[package]]
 name = "windows-core"
 version = "0.61.0"
@@ -1669,13 +2544,22 @@ dependencies = [
  "windows-link",
 ]
 
+[[package]]
+name = "windows-sys"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
+dependencies = [
+ "windows-targets 0.48.5",
+]
+
 [[package]]
 name = "windows-sys"
 version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
 dependencies = [
- "windows-targets",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -1684,7 +2568,22 @@ version = "0.59.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
 dependencies = [
- "windows-targets",
+ "windows-targets 0.52.6",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a2fa6e2155d7247be68c096456083145c183cbbbc2764150dda45a87197940c"
+dependencies = [
+ "windows_aarch64_gnullvm 0.48.5",
+ "windows_aarch64_msvc 0.48.5",
+ "windows_i686_gnu 0.48.5",
+ "windows_i686_msvc 0.48.5",
+ "windows_x86_64_gnu 0.48.5",
+ "windows_x86_64_gnullvm 0.48.5",
+ "windows_x86_64_msvc 0.48.5",
 ]
 
 [[package]]
@@ -1693,28 +2592,46 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
 dependencies = [
- "windows_aarch64_gnullvm",
- "windows_aarch64_msvc",
- "windows_i686_gnu",
+ "windows_aarch64_gnullvm 0.52.6",
+ "windows_aarch64_msvc 0.52.6",
+ "windows_i686_gnu 0.52.6",
  "windows_i686_gnullvm",
- "windows_i686_msvc",
- "windows_x86_64_gnu",
- "windows_x86_64_gnullvm",
- "windows_x86_64_msvc",
+ "windows_i686_msvc 0.52.6",
+ "windows_x86_64_gnu 0.52.6",
+ "windows_x86_64_gnullvm 0.52.6",
+ "windows_x86_64_msvc 0.52.6",
 ]
 
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
+
 [[package]]
 name = "windows_aarch64_gnullvm"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
 
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
+
 [[package]]
 name = "windows_aarch64_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
 
+[[package]]
+name = "windows_i686_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
+
 [[package]]
 name = "windows_i686_gnu"
 version = "0.52.6"
@@ -1727,24 +2644,48 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
 
+[[package]]
+name = "windows_i686_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
+
 [[package]]
 name = "windows_i686_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
 
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
+
 [[package]]
 name = "windows_x86_64_gnu"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
 
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
+
 [[package]]
 name = "windows_x86_64_gnullvm"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
 
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
+
 [[package]]
 name = "windows_x86_64_msvc"
 version = "0.52.6"
@@ -1837,6 +2778,12 @@ dependencies = [
  "synstructure",
 ]
 
+[[package]]
+name = "zeroize"
+version = "1.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ced3678a2879b30306d323f4542626697a464a97c0a07c9aebf7ebca65cd4dde"
+
 [[package]]
 name = "zerovec"
 version = "0.10.4"
diff --git a/backend/Cargo.toml b/backend/Cargo.toml
index 9109657..1e8c7b8 100644
--- a/backend/Cargo.toml
+++ b/backend/Cargo.toml
@@ -10,8 +10,17 @@ edition = "2024"
 actix-web = "4.10.2"
 async-trait = "0.1.88"
 chrono = "0.4.41"
+dotenv = "0.15.0"
 env_logger = "0.11.8"
+futures = "0.3.31"
 serde = { version = "1.0.219", features = ["derive"] }
+sqlx = { version = "0.8.5", features = [
+    "chrono",
+    "macros",
+    "postgres",
+    "runtime-tokio-rustls",
+] }
+tokio = { version = "1.45.0", features = ["full"] }
 
 server.path = "server"
 post.path = "feature/post"
diff --git a/backend/build.rs b/backend/build.rs
new file mode 100644
index 0000000..d506869
--- /dev/null
+++ b/backend/build.rs
@@ -0,0 +1,5 @@
+// generated by `sqlx migrate build-script`
+fn main() {
+    // trigger recompilation when a new migration is added
+    println!("cargo:rerun-if-changed=migrations");
+}
diff --git a/backend/feature/post/Cargo.toml b/backend/feature/post/Cargo.toml
index 5107a14..5815547 100644
--- a/backend/feature/post/Cargo.toml
+++ b/backend/feature/post/Cargo.toml
@@ -8,3 +8,5 @@ actix-web.workspace = true
 async-trait.workspace = true
 chrono.workspace = true
 serde.workspace = true
+sqlx.workspace = true
+tokio.workspace = true
diff --git a/backend/feature/post/src/adapter.rs b/backend/feature/post/src/adapter.rs
index 3dc4028..a5233c4 100644
--- a/backend/feature/post/src/adapter.rs
+++ b/backend/feature/post/src/adapter.rs
@@ -1,2 +1,2 @@
-pub mod controller;
+pub mod delivery;
 pub mod gateway;
diff --git a/backend/feature/post/src/adapter/controller.rs b/backend/feature/post/src/adapter/delivery.rs
similarity index 100%
rename from backend/feature/post/src/adapter/controller.rs
rename to backend/feature/post/src/adapter/delivery.rs
diff --git a/backend/feature/post/src/adapter/controller/label_response_dto.rs b/backend/feature/post/src/adapter/delivery/label_response_dto.rs
similarity index 82%
rename from backend/feature/post/src/adapter/controller/label_response_dto.rs
rename to backend/feature/post/src/adapter/delivery/label_response_dto.rs
index 1c552d1..e709c27 100644
--- a/backend/feature/post/src/adapter/controller/label_response_dto.rs
+++ b/backend/feature/post/src/adapter/delivery/label_response_dto.rs
@@ -4,7 +4,7 @@ use crate::domain::entity::label::Label;
 
 #[derive(Serialize)]
 pub struct LabelResponseDto {
-    pub id: u32,
+    pub id: i32,
     pub name: String,
     pub color: String,
 }
@@ -14,8 +14,7 @@ impl From<Label> for LabelResponseDto {
         Self {
             id: entity.id,
             name: entity.name,
-            color: entity.color,
+            color: format!("#{:08X}", entity.color),
         }
     }
-    
-}
\ No newline at end of file
+}
diff --git a/backend/feature/post/src/adapter/controller/post_controller.rs b/backend/feature/post/src/adapter/delivery/post_controller.rs
similarity index 100%
rename from backend/feature/post/src/adapter/controller/post_controller.rs
rename to backend/feature/post/src/adapter/delivery/post_controller.rs
diff --git a/backend/feature/post/src/adapter/controller/post_info_response_dto.rs b/backend/feature/post/src/adapter/delivery/post_info_response_dto.rs
similarity index 80%
rename from backend/feature/post/src/adapter/controller/post_info_response_dto.rs
rename to backend/feature/post/src/adapter/delivery/post_info_response_dto.rs
index ce29d18..da41320 100644
--- a/backend/feature/post/src/adapter/controller/post_info_response_dto.rs
+++ b/backend/feature/post/src/adapter/delivery/post_info_response_dto.rs
@@ -6,12 +6,12 @@ use super::label_response_dto::LabelResponseDto;
 
 #[derive(Serialize)]
 pub struct PostInfoResponseDto {
-    pub id: u32,
+    pub id: i32,
     pub title: String,
     pub description: String,
     pub preview_image_url: String,
     pub labels: Vec<LabelResponseDto>,
-    pub published_time: i64,
+    pub published_time: Option<i64>,
 }
 
 impl From<PostInfo> for PostInfoResponseDto {
@@ -26,7 +26,9 @@ impl From<PostInfo> for PostInfoResponseDto {
                 .into_iter()
                 .map(LabelResponseDto::from)
                 .collect(),
-            published_time: entity.published_time.timestamp_micros(),
+            published_time: entity
+                .published_time
+                .map(|datetime| datetime.timestamp_micros()),
         }
     }
 }
diff --git a/backend/feature/post/src/application/error/post_error.rs b/backend/feature/post/src/application/error/post_error.rs
index 5422ab3..653e091 100644
--- a/backend/feature/post/src/application/error/post_error.rs
+++ b/backend/feature/post/src/application/error/post_error.rs
@@ -1 +1,4 @@
-pub enum PostError {}
+pub enum PostError {
+    DatabaseError(String),
+    NotFound,
+}
diff --git a/backend/feature/post/src/domain/entity/label.rs b/backend/feature/post/src/domain/entity/label.rs
index e4e0392..e419059 100644
--- a/backend/feature/post/src/domain/entity/label.rs
+++ b/backend/feature/post/src/domain/entity/label.rs
@@ -1,5 +1,5 @@
 pub struct Label {
-    pub id: u32,
+    pub id: i32,
     pub name: String,
-    pub color: String,
+    pub color: u32,
 }
diff --git a/backend/feature/post/src/domain/entity/post.rs b/backend/feature/post/src/domain/entity/post.rs
index 059860b..a968187 100644
--- a/backend/feature/post/src/domain/entity/post.rs
+++ b/backend/feature/post/src/domain/entity/post.rs
@@ -1,7 +1,7 @@
 use super::post_info::PostInfo;
 
 pub struct Post {
-    pub id: u32,
+    pub id: i32,
     pub info: PostInfo,
     pub content: String,
 }
diff --git a/backend/feature/post/src/domain/entity/post_info.rs b/backend/feature/post/src/domain/entity/post_info.rs
index 03f8b03..ee5f7f9 100644
--- a/backend/feature/post/src/domain/entity/post_info.rs
+++ b/backend/feature/post/src/domain/entity/post_info.rs
@@ -3,10 +3,10 @@ use chrono::{DateTime, Utc};
 use super::label::Label;
 
 pub struct PostInfo {
-    pub id: u32,
+    pub id: i32,
     pub title: String,
     pub description: String,
     pub preview_image_url: String,
     pub labels: Vec<Label>,
-    pub published_time: DateTime<Utc>,
+    pub published_time: Option<DateTime<Utc>>,
 }
diff --git a/backend/feature/post/src/framework/db/post_db_service_impl.rs b/backend/feature/post/src/framework/db/post_db_service_impl.rs
index 2f95774..1d410cb 100644
--- a/backend/feature/post/src/framework/db/post_db_service_impl.rs
+++ b/backend/feature/post/src/framework/db/post_db_service_impl.rs
@@ -1,31 +1,84 @@
-use std::str::FromStr;
+use std::sync::Arc;
 
 use async_trait::async_trait;
-use chrono::DateTime;
+use chrono::{DateTime, Utc};
+use sqlx::{Pool, Postgres};
 
 use crate::{
     adapter::gateway::post_db_service::PostDbService, application::error::post_error::PostError,
     domain::entity::post_info::PostInfo,
 };
 
-pub struct PostDbServiceImpl {}
+pub struct PostDbServiceImpl {
+    db_pool: Arc<Pool<Postgres>>,
+}
 
 impl PostDbServiceImpl {
-    pub fn new() -> Self {
-        Self {}
+    pub fn new(db_pool: Arc<Pool<Postgres>>) -> Self {
+        Self { db_pool }
     }
 }
 
 #[async_trait]
 impl PostDbService for PostDbServiceImpl {
     async fn get_all_post_info(&self) -> Result<Vec<PostInfo>, PostError> {
-        Ok(vec![PostInfo {
-            id: 1,
-            title: "Post 1".to_string(),
-            description: "Description of post 1".to_string(),
-            preview_image_url: "http://example.com/image1.jpg".to_string(),
-            labels: vec![],
-            published_time: DateTime::from_str("2023-10-01T12:00:00Z").unwrap(),
-        }])
+        let posts = sqlx::query!(
+            r#"
+            SELECT 
+                p.id, 
+                p.title, 
+                p.description, 
+                p.preview_image_url,
+                p.published_time
+            FROM post p
+            WHERE p.deleted_time IS NULL
+            "#
+        )
+        .fetch_all(&*self.db_pool)
+        .await
+        .map_err(|err| PostError::DatabaseError(err.to_string()))?;
+
+        let mut post_infos = Vec::new();
+
+        for post in posts {
+            let labels = sqlx::query!(
+                r#"
+                SELECT 
+                    l.id,
+                    l.name,
+                    l.color
+                FROM label l
+                JOIN post_label pl ON l.id = pl.label_id
+                WHERE pl.post_id = $1
+                AND l.deleted_time IS NULL
+                "#,
+                post.id
+            )
+            .fetch_all(&*self.db_pool)
+            .await
+            .map_err(|err| PostError::DatabaseError(err.to_string()))?;
+
+            let domain_labels = labels
+                .into_iter()
+                .map(|label| crate::domain::entity::label::Label {
+                    id: label.id,
+                    name: label.name,
+                    color: label.color as u32,
+                })
+                .collect();
+
+            post_infos.push(PostInfo {
+                id: post.id,
+                title: post.title,
+                description: post.description,
+                preview_image_url: post.preview_image_url,
+                labels: domain_labels,
+                published_time: post
+                    .published_time
+                    .map(|dt| DateTime::<Utc>::from_naive_utc_and_offset(dt, Utc)),
+            });
+        }
+
+        Ok(post_infos)
     }
 }
diff --git a/backend/feature/post/src/framework/web/post_web_routes.rs b/backend/feature/post/src/framework/web/post_web_routes.rs
index d68a9ce..0bb2e00 100644
--- a/backend/feature/post/src/framework/web/post_web_routes.rs
+++ b/backend/feature/post/src/framework/web/post_web_routes.rs
@@ -2,13 +2,19 @@ use std::sync::Arc;
 
 use actix_web::{HttpResponse, Responder, web};
 
-use crate::adapter::controller::post_controller::PostController;
+use crate::{
+    adapter::delivery::post_controller::{PostController, PostControllerImpl},
+    application::use_case::get_all_post_info_use_case::GetAllPostInfoUseCase,
+};
 
 pub fn configure_post_routes(cfg: &mut web::ServiceConfig) {
     cfg.service(web::resource("/post_info").route(web::get().to(get_all_post_info)));
 }
 
-async fn get_all_post_info(post_controller: web::Data<Arc<dyn PostController>>) -> impl Responder {
+async fn get_all_post_info(
+    get_all_post_info_use_case: web::Data<Arc<dyn GetAllPostInfoUseCase>>,
+) -> impl Responder {
+    let post_controller = PostControllerImpl::new(get_all_post_info_use_case.get_ref().clone());
     let result = post_controller.get_all_post_info().await;
 
     match result {
diff --git a/backend/migrations/20250505012740_v0.1.1.sql b/backend/migrations/20250505012740_v0.1.1.sql
new file mode 100644
index 0000000..1f74985
--- /dev/null
+++ b/backend/migrations/20250505012740_v0.1.1.sql
@@ -0,0 +1,30 @@
+-- Add migration script here
+
+CREATE TABLE "post" (
+    "id" SERIAL PRIMARY KEY NOT NULL,
+    "title" TEXT NOT NULL,
+    "description" TEXT NOT NULL,
+    "preview_image_url" TEXT NOT NULL,
+    "content" TEXT NOT NULL,
+    "published_time" TIMESTAMP,
+    "deleted_time" TIMESTAMP,
+    "created_time" TIMESTAMP NOT NULL,
+    "updated_time" TIMESTAMP NOT NULL
+);
+
+CREATE TABLE "label" (
+    "id" SERIAL PRIMARY KEY NOT NULL,
+    "name" TEXT NOT NULL,
+    "color" BIGINT NOT NULL CHECK ("color" >= 0 AND "color" <= 4294967295),
+    "deleted_time" TIMESTAMP,
+    "created_time" TIMESTAMP NOT NULL,
+    "updated_time" TIMESTAMP NOT NULL
+);
+
+CREATE TABLE "post_label" (
+    "post_id" INTEGER NOT NULL,
+    "label_id" INTEGER NOT NULL,
+    PRIMARY KEY ("post_id", "label_id"),
+    FOREIGN KEY ("post_id") REFERENCES "post" ("id") ON DELETE CASCADE,
+    FOREIGN KEY ("label_id") REFERENCES "label" ("id") ON DELETE CASCADE
+);
diff --git a/backend/server/Cargo.toml b/backend/server/Cargo.toml
index 02721ba..1dbcb27 100644
--- a/backend/server/Cargo.toml
+++ b/backend/server/Cargo.toml
@@ -5,6 +5,8 @@ edition.workspace = true
 
 [dependencies]
 actix-web.workspace = true
+dotenv.workspace = true
 env_logger.workspace = true
+sqlx.workspace = true
 
 post.workspace = true
diff --git a/backend/server/src/controllers.rs b/backend/server/src/controllers.rs
deleted file mode 100644
index baf8490..0000000
--- a/backend/server/src/controllers.rs
+++ /dev/null
@@ -1,25 +0,0 @@
-use std::sync::Arc;
-
-use post::{
-    adapter::{
-        controller::post_controller::{PostController, PostControllerImpl},
-        gateway::post_repository_impl::PostRepositoryImpl,
-    },
-    application::use_case::get_all_post_info_use_case::GetAllPostInfoUseCaseImpl,
-    framework::db::post_db_service_impl::PostDbServiceImpl,
-};
-
-pub struct Controllers {
-    pub post_controller: Arc<dyn PostController>,
-}
-
-impl Controllers {
-    pub fn new() -> Self {
-        let post_db_service = Arc::new(PostDbServiceImpl::new());
-        let post_repository = Arc::new(PostRepositoryImpl::new(post_db_service));
-        let get_all_post_info_use_case = Arc::new(GetAllPostInfoUseCaseImpl::new(post_repository));
-        let post_controller = Arc::new(PostControllerImpl::new(get_all_post_info_use_case));
-
-        Self { post_controller }
-    }
-}
diff --git a/backend/server/src/lib.rs b/backend/server/src/lib.rs
index f916674..d07542b 100644
--- a/backend/server/src/lib.rs
+++ b/backend/server/src/lib.rs
@@ -1 +1 @@
-pub mod controllers;
+pub mod use_cases;
diff --git a/backend/server/src/main.rs b/backend/server/src/main.rs
index 63feac1..9fe3b76 100644
--- a/backend/server/src/main.rs
+++ b/backend/server/src/main.rs
@@ -5,19 +5,44 @@ use actix_web::{
     web,
 };
 use post::framework::web::post_web_routes::configure_post_routes;
-use server::controllers::Controllers;
+use server::use_cases::UseCases;
+use sqlx::{Pool, Postgres, postgres::PgPoolOptions};
+use std::{env, sync::Arc};
 
 #[actix_web::main]
 async fn main() -> std::io::Result<()> {
+    dotenv::dotenv().ok();
     env_logger::init();
 
-    HttpServer::new(create_app)
+    let db_pool = init_database().await;
+
+    HttpServer::new(move || create_app(db_pool.clone()))
         .bind(("127.0.0.1", 8080))?
         .run()
         .await
 }
 
-fn create_app() -> App<
+async fn init_database() -> Arc<Pool<Postgres>> {
+    let database_url = env::var("DATABASE_URL")
+        .unwrap_or_else(|_| "postgres://postgres@localhost:5432/postgres".to_string());
+
+    let db_pool = PgPoolOptions::new()
+        .max_connections(5)
+        .connect(&database_url)
+        .await
+        .expect("Failed to create database connection pool");
+
+    sqlx::migrate!("../migrations")
+        .run(&db_pool)
+        .await
+        .expect("Failed to run database migrations");
+
+    Arc::new(db_pool)
+}
+
+fn create_app(
+    db_pool: Arc<Pool<Postgres>>,
+) -> App<
     impl ServiceFactory<
         ServiceRequest,
         Response = ServiceResponse<impl MessageBody>,
@@ -26,9 +51,10 @@ fn create_app() -> App<
         Error = Error,
     >,
 > {
-    let controllers = Controllers::new();
+    let use_cases = UseCases::new(db_pool.clone());
 
     App::new()
-        .app_data(web::Data::new(controllers.post_controller))
+        .app_data(web::Data::new(db_pool))
+        .app_data(web::Data::new(use_cases.get_all_post_info_use_case))
         .configure(configure_post_routes)
 }
diff --git a/backend/server/src/use_cases.rs b/backend/server/src/use_cases.rs
new file mode 100644
index 0000000..ac11aa2
--- /dev/null
+++ b/backend/server/src/use_cases.rs
@@ -0,0 +1,28 @@
+use std::sync::Arc;
+
+use post::{
+    adapter::gateway::post_repository_impl::PostRepositoryImpl,
+    application::use_case::get_all_post_info_use_case::{
+        GetAllPostInfoUseCase, GetAllPostInfoUseCaseImpl,
+    },
+    framework::db::post_db_service_impl::PostDbServiceImpl,
+};
+use sqlx::{Pool, Postgres};
+
+pub struct UseCases {
+    pub get_all_post_info_use_case: Arc<dyn GetAllPostInfoUseCase>,
+}
+
+impl UseCases {
+    pub fn new(db_pool: Arc<Pool<Postgres>>) -> Self {
+        let post_db_service = Arc::new(PostDbServiceImpl::new(db_pool));
+
+        let post_repository = Arc::new(PostRepositoryImpl::new(post_db_service));
+
+        let get_all_post_info_use_case = Arc::new(GetAllPostInfoUseCaseImpl::new(post_repository));
+
+        Self {
+            get_all_post_info_use_case,
+        }
+    }
+}