19 files changed, 523 insertions, 3 deletions

diff --git a/alembic.ini b/alembic.ini
new file mode 100644
index 0000000..67f7bd4
--- /dev/null
+++ b/alembic.ini
@@ -0,0 +1,149 @@
+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts.
+# this is typically a path given in POSIX (e.g. forward slashes)
+# format, relative to the token %(here)s which refers to the location of this
+# ini file
+script_location = %(here)s/db/migrations
+
+# template used to generate migration file names; The default value is %%(rev)s_%%(slug)s
+# Uncomment the line below if you want the files to be prepended with date and time
+# see https://alembic.sqlalchemy.org/en/latest/tutorial.html#editing-the-ini-file
+# for all available tokens
+file_template = %%(year)d%%(month).2d%%(day).2d%%(hour).2d%%(minute).2d-%%(rev)s_%%(slug)s
+# Or organize into date-based subdirectories (requires recursive_version_locations = true)
+# file_template = %%(year)d/%%(month).2d/%%(day).2d_%%(hour).2d%%(minute).2d_%%(second).2d_%%(rev)s_%%(slug)s
+
+# sys.path path, will be prepended to sys.path if present.
+# defaults to the current working directory.  for multiple paths, the path separator
+# is defined by "path_separator" below.
+prepend_sys_path = .
+
+
+# timezone to use when rendering the date within the migration file
+# as well as the filename.
+# If specified, requires the tzdata library which can be installed by adding
+# `alembic[tz]` to the pip requirements.
+# string value is passed to ZoneInfo()
+# leave blank for localtime
+# timezone =
+
+# max length of characters to apply to the "slug" field
+# truncate_slug_length = 40
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+# set to 'true' to allow .pyc and .pyo files without
+# a source .py file to be detected as revisions in the
+# versions/ directory
+# sourceless = false
+
+# version location specification; This defaults
+# to <script_location>/versions.  When using multiple version
+# directories, initial revisions must be specified with --version-path.
+# The path separator used here should be the separator specified by "path_separator"
+# below.
+# version_locations = %(here)s/bar:%(here)s/bat:%(here)s/alembic/versions
+
+# path_separator; This indicates what character is used to split lists of file
+# paths, including version_locations and prepend_sys_path within configparser
+# files such as alembic.ini.
+# The default rendered in new alembic.ini files is "os", which uses os.pathsep
+# to provide os-dependent path splitting.
+#
+# Note that in order to support legacy alembic.ini files, this default does NOT
+# take place if path_separator is not present in alembic.ini.  If this
+# option is omitted entirely, fallback logic is as follows:
+#
+# 1. Parsing of the version_locations option falls back to using the legacy
+#    "version_path_separator" key, which if absent then falls back to the legacy
+#    behavior of splitting on spaces and/or commas.
+# 2. Parsing of the prepend_sys_path option falls back to the legacy
+#    behavior of splitting on spaces, commas, or colons.
+#
+# Valid values for path_separator are:
+#
+# path_separator = :
+# path_separator = ;
+# path_separator = space
+# path_separator = newline
+#
+# Use os.pathsep. Default configuration used for new projects.
+path_separator = os
+
+# set to 'true' to search source files recursively
+# in each "version_locations" directory
+# new in Alembic version 1.10
+# recursive_version_locations = false
+
+# the output encoding used when revision files
+# are written from script.py.mako
+# output_encoding = utf-8
+
+# database URL.  This is consumed by the user-maintained env.py script only.
+# other means of configuring database URLs may be customized within the env.py
+# file.
+sqlalchemy.url = driver://user:pass@localhost/dbname
+
+
+[post_write_hooks]
+# post_write_hooks defines scripts or Python functions that are run
+# on newly generated revision scripts.  See the documentation for further
+# detail and examples
+
+# format using "black" - use the console_scripts runner, against the "black" entrypoint
+# hooks = black
+# black.type = console_scripts
+# black.entrypoint = black
+# black.options = -l 79 REVISION_SCRIPT_FILENAME
+
+# lint with attempts to fix using "ruff" - use the module runner, against the "ruff" module
+# hooks = ruff
+# ruff.type = module
+# ruff.module = ruff
+# ruff.options = check --fix REVISION_SCRIPT_FILENAME
+
+# Alternatively, use the exec runner to execute a binary found on your PATH
+# hooks = ruff
+# ruff.type = exec
+# ruff.executable = ruff
+# ruff.options = check --fix REVISION_SCRIPT_FILENAME
+
+# Logging configuration.  This is also consumed by the user-maintained
+# env.py script only.
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARNING
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARNING
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S
diff --git a/conf/__init__.py b/conf/__init__.py
new file mode 100644
index 0000000..c08dcee
--- /dev/null
+++ b/conf/__init__.py
@@ -0,0 +1,8 @@
+import os
+
+try:
+    from .local import *
+except ImportError:
+    pass
+
+DATABASE_URL = os.environ.get('DATABASE_URL')
diff --git a/conf/local.py b/conf/local.py
new file mode 100644
index 0000000..608e0e5
--- /dev/null
+++ b/conf/local.py
@@ -0,0 +1,3 @@
+import os
+
+os.environ.setdefault('DATABASE_URL', 'postgresql:///ttun')
diff --git a/db/__init__.py b/db/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/db/__init__.py
diff --git a/db/migrations/README b/db/migrations/README
new file mode 100644
index 0000000..98e4f9c
--- /dev/null
+++ b/db/migrations/README
@@ -0,0 +1 @@
+Generic single-database configuration.
\ No newline at end of file
diff --git a/db/migrations/env.py b/db/migrations/env.py
new file mode 100644
index 0000000..f1b3156
--- /dev/null
+++ b/db/migrations/env.py
@@ -0,0 +1,82 @@
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+
+from conf import DATABASE_URL
+from db.models import *
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+target_metadata = SQLModel.metadata
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+config.set_main_option('sqlalchemy.url', DATABASE_URL)
+
+
+def run_migrations_offline() -> None:
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online() -> None:
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section, {}),
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection, target_metadata=target_metadata
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()
diff --git a/db/migrations/script.py.mako b/db/migrations/script.py.mako
new file mode 100644
index 0000000..697cf67
--- /dev/null
+++ b/db/migrations/script.py.mako
@@ -0,0 +1,29 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+import sqlmodel
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision: str = ${repr(up_revision)}
+down_revision: Union[str, Sequence[str], None] = ${repr(down_revision)}
+branch_labels: Union[str, Sequence[str], None] = ${repr(branch_labels)}
+depends_on: Union[str, Sequence[str], None] = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    ${downgrades if downgrades else "pass"}
diff --git a/db/migrations/versions/202607012255-40e20fbf63c9_.py b/db/migrations/versions/202607012255-40e20fbf63c9_.py
new file mode 100644
index 0000000..a32131a
--- /dev/null
+++ b/db/migrations/versions/202607012255-40e20fbf63c9_.py
@@ -0,0 +1,35 @@
+"""empty message
+
+Revision ID: 40e20fbf63c9
+Revises: 6ebaa6ab0f48
+Create Date: 2026-07-01 22:55:55.017591
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+import sqlmodel
+
+
+# revision identifiers, used by Alembic.
+revision: str = '40e20fbf63c9'
+down_revision: Union[str, Sequence[str], None] = '6ebaa6ab0f48'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('user', sa.Column('external_id', sa.Uuid(), nullable=False, server_default=sa.text('gen_random_uuid()')))
+    op.create_index(op.f('ix_user_external_id'), 'user', ['external_id'], unique=True)
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f('ix_user_external_id'), table_name='user')
+    op.drop_column('user', 'external_id')
+    # ### end Alembic commands ###
diff --git a/db/migrations/versions/202607012255-6ebaa6ab0f48_.py b/db/migrations/versions/202607012255-6ebaa6ab0f48_.py
new file mode 100644
index 0000000..9d4daa2
--- /dev/null
+++ b/db/migrations/versions/202607012255-6ebaa6ab0f48_.py
@@ -0,0 +1,39 @@
+"""empty message
+
+Revision ID: 6ebaa6ab0f48
+Revises: 
+Create Date: 2026-07-01 22:55:14.146711
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+import sqlmodel
+
+
+# revision identifiers, used by Alembic.
+revision: str = '6ebaa6ab0f48'
+down_revision: Union[str, Sequence[str], None] = None
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('user',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('username', sqlmodel.sql.sqltypes.AutoString(), nullable=False),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_user_username'), 'user', ['username'], unique=True)
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f('ix_user_username'), table_name='user')
+    op.drop_table('user')
+    # ### end Alembic commands ###
diff --git a/db/models.py b/db/models.py
new file mode 100644
index 0000000..b66f5bc
--- /dev/null
+++ b/db/models.py
@@ -0,0 +1,13 @@
+from uuid import uuid4, UUID
+
+from sqlmodel import SQLModel, Field
+
+
+class BaseModel(SQLModel):
+    id: int | None = Field(primary_key=True, default=None)
+
+class ExternalModelMixin:
+    external_id: UUID = Field(index=True, unique=True, default_factory=uuid4)
+
+class User(BaseModel, ExternalModelMixin, table=True):
+    username: str = Field(unique=True, index=True)
diff --git a/db/session.py b/db/session.py
new file mode 100644
index 0000000..4d83649
--- /dev/null
+++ b/db/session.py
@@ -0,0 +1,21 @@
+from contextlib import contextmanager
+
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker, scoped_session
+from sqlmodel import Session
+
+from conf import DATABASE_URL
+from utils.json import json_serializer
+
+
+engine = create_engine(DATABASE_URL, echo=True, future=True, json_serializer=json_serializer, pool_size=100, pool_recycle=3600)
+session_factory = sessionmaker(engine, class_=Session)
+ScopedSession = scoped_session(session_factory=session_factory)
+
+def get_session():
+    with ScopedSession() as session:
+        yield session
+
+@contextmanager
+def get_session_context():
+    yield from get_session()
diff --git a/proxy/endpoints.py b/proxy/endpoints.py
index c287a88..0a23e7b 100644
--- a/proxy/endpoints.py
+++ b/proxy/endpoints.py
@@ -7,7 +7,7 @@ from starlette.requests import Request
 from starlette.responses import Response
 
 from proxy.utils import get_path_with_query_string
-from ttun_server.proxy_queue import ProxyQueue
+from proxy.queue import ProxyQueue
 from ttun_server.types import HttpMessage, HttpMessageType, HttpRequestData
 
 logger = logging.getLogger(__name__)
diff --git a/ttun_server/proxy_queue.py b/proxy/queue.py
index cfa0f3c..cfa0f3c 100644
--- a/ttun_server/proxy_queue.py
+++ b/proxy/queue.py
diff --git a/proxy/websockets.py b/proxy/websockets.py
index ef80ec2..ec65e6d 100644
--- a/proxy/websockets.py
+++ b/proxy/websockets.py
@@ -10,7 +10,7 @@ from starlette.endpoints import WebSocketEndpoint
 from starlette.websockets import WebSocket
 
 from proxy.utils import get_path_with_query_string
-from ttun_server.proxy_queue import ProxyQueue
+from proxy.queue import ProxyQueue
 from ttun_server.types import WebsocketMessage, WebsocketMessageType, WebsocketConnectData, WebsocketMessageData, \
     WebsocketDisconnectData
 
diff --git a/pyproject.toml b/pyproject.toml
index 70f2683..557c2f2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,7 +3,10 @@ name = "ttun-server"
 version = "0.1.0"
 requires-python = ">=3.14"
 dependencies = [
+    "alembic>=1.18.5",
     "fastapi[standard]>=0.138.2",
+    "psycopg2>=2.9.12",
     "redis[hiredis]~=7.4.0",
+    "sqlmodel>=0.0.39",
     "uvicorn[standard]~=0.44.0",
 ]
diff --git a/ttun_server/websockets.py b/ttun_server/websockets.py
index ea9ae94..c791625 100644
--- a/ttun_server/websockets.py
+++ b/ttun_server/websockets.py
@@ -6,7 +6,7 @@ from uuid import uuid4
 from fastapi import WebSocket, WebSocketDisconnect
 
 import ttun_server
-from ttun_server.proxy_queue import ProxyQueue
+from proxy.queue import ProxyQueue
 from ttun_server.types import (
     Config,
     Message,
diff --git a/utils/__init__.py b/utils/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/utils/__init__.py
diff --git a/utils/json.py b/utils/json.py
new file mode 100644
index 0000000..05d66cb
--- /dev/null
+++ b/utils/json.py
@@ -0,0 +1,16 @@
+import json
+from json import JSONEncoder
+
+from pydantic import BaseModel
+
+
+class Encoder(JSONEncoder):
+    def default(self, o):
+        if isinstance(o, BaseModel):
+            return o.model_dump()
+
+        return super().default(o)
+
+
+def json_serializer(item: any):
+    return json.dumps(item, cls=Encoder)
diff --git a/uv.lock b/uv.lock
index 5688a0b..00dc2b1 100644
--- a/uv.lock
+++ b/uv.lock
@@ -3,6 +3,20 @@ revision = 3
 requires-python = ">=3.14"
 
 [[package]]
+name = "alembic"
+version = "1.18.5"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "mako" },
+    { name = "sqlalchemy" },
+    { name = "typing-extensions" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/1a/cc/ac0bed8e562e7407fe55c3ba85a4dce86e6dbd8730887bd1e406a6c5c18a/alembic-1.18.5.tar.gz", hash = "sha256:1554982221dd17e9a749b53902407578eb305e453f71999e8c7f0a48389fff8e", size = 2060480, upload-time = "2026-06-25T15:20:54.888Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/96/78/5fe6dc3a3a5b2f5a2a4faef8bfe336d5fa049a38884ab3172e0098160c01/alembic-1.18.5-py3-none-any.whl", hash = "sha256:06d8ba9d04558022f5395e9317de03d270f3dced49cee01f89fe7a13c26f14bc", size = 264664, upload-time = "2026-06-25T15:20:56.673Z" },
+]
+
+[[package]]
 name = "annotated-doc"
 version = "0.0.4"
 source = { registry = "https://pypi.org/simple" }
@@ -203,6 +217,45 @@ wheels = [
 ]
 
 [[package]]
+name = "greenlet"
+version = "3.5.3"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/e2/f1/fbbfef6af0bad0548f09bc28948ea3c275b4edb19e17fc5ca9900a6a634d/greenlet-3.5.3.tar.gz", hash = "sha256:a61efc018fd3eb317eeca31aba90ee9e7f26f22884a79b6c6ec715bf71bb62f1", size = 200270, upload-time = "2026-06-26T19:28:24.832Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/c3/93/43e116ee114b28737ba7e12952a0d4e2f55944d0f84e42bc91ba7192a3c9/greenlet-3.5.3-cp314-cp314-macosx_11_0_universal2.whl", hash = "sha256:fd2e02fa07485778536a036222d616ab957b1d533f36b3ed98ce725d9c9d3117", size = 288202, upload-time = "2026-06-26T18:23:49.604Z" },
+    { url = "https://files.pythonhosted.org/packages/82/2f/146d218299046a43d1f029fd544b3d110d0f175a09c715c7e8da4a4a345d/greenlet-3.5.3-cp314-cp314-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl", hash = "sha256:df0a0628d1597eb0897b62f55d1343f772405fd25f3b2a796c76874b0c2e22e8", size = 654096, upload-time = "2026-06-26T19:07:12.71Z" },
+    { url = "https://files.pythonhosted.org/packages/a0/cc/04738cafb3f45fa991ea44f9de94c47dcec964f5a972300988a6751f49d9/greenlet-3.5.3-cp314-cp314-manylinux_2_24_ppc64le.manylinux_2_28_ppc64le.whl", hash = "sha256:ebd933a6adabc298bab47731a130fe6bfb888bd934eee37810f151159544540d", size = 666304, upload-time = "2026-06-26T19:10:09.503Z" },
+    { url = "https://files.pythonhosted.org/packages/ce/aa/4e0dad5e605c270c784ab911c43da6adb136ccd4d81180f763ca429a723d/greenlet-3.5.3-cp314-cp314-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:4b9d501b40e80b70e32323c799dd9b420a5577a9601469d362ae1ffb690f3a7c", size = 663635, upload-time = "2026-06-26T18:32:20.802Z" },
+    { url = "https://files.pythonhosted.org/packages/d1/50/13efdbea246fe3d3b735e191fec08fb50809f53cd2383ebe123d0809e44b/greenlet-3.5.3-cp314-cp314-musllinux_1_2_aarch64.whl", hash = "sha256:a1fad1d11e7d6aab184107baa8e4ece11ccba3ec9599cd7efa5ff4d70d43256a", size = 1621252, upload-time = "2026-06-26T19:09:05.647Z" },
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+]
+
+[[package]]
+name = "sqlmodel"
+version = "0.0.39"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "pydantic" },
+    { name = "sqlalchemy" },
+    { name = "typing-extensions" },
+]
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+wheels = [
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+]
+
+[[package]]
 name = "starlette"
 version = "1.0.0"
 source = { registry = "https://pypi.org/simple" }
@@ -619,15 +734,21 @@ name = "ttun-server"
 version = "0.1.0"
 source = { virtual = "." }
 dependencies = [
+    { name = "alembic" },
     { name = "fastapi", extra = ["standard"] },
+    { name = "psycopg2" },
     { name = "redis", extra = ["hiredis"] },
+    { name = "sqlmodel" },
     { name = "uvicorn", extra = ["standard"] },
 ]
 
 [package.metadata]
 requires-dist = [
+    { name = "alembic", specifier = ">=1.18.5" },
     { name = "fastapi", extras = ["standard"], specifier = ">=0.138.2" },
+    { name = "psycopg2", specifier = ">=2.9.12" },
     { name = "redis", extras = ["hiredis"], specifier = "~=7.4.0" },
+    { name = "sqlmodel", specifier = ">=0.0.39" },
     { name = "uvicorn", extras = ["standard"], specifier = "~=0.44.0" },
 ]